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A platform for research: civil engineering, architecture and urbanism
DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR, FIRE DOOR WITH DIFFERENTIAL PRESSURE RELIEF STRUCTURE, AND RETROFIT UNIT FOR DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR
To provide a differential pressure relieving structure for a fire door capable of relaxing the pressure difference between the inside and outside of a fire door and automatically closing a vent formed in the fire door in the event of a fire.SOLUTION: A differential pressure relaxation structure 1A for a fire door is provided with: a vent hole 4 formed through a thickness direction of a fire door 50; a closing plate 5 slidably held on a shielding surface 51a of the fire door 50 and closing the vent 4 when desired; and a deregulating member 7 that is provided on the shielding surface 51a, and positions the closing plate 5 at a desired position on the shielding surface 51a at room temperature to regulate its sliding, and releases the positioning of the closing plate 5 at a defined temperature desired exceeding room temperature.SELECTED DRAWING: Figure 1
【課題】防火扉の内外の圧力差を緩和することができ、かつ火災時に防火扉に形成される通気口を自動で閉鎖することができる防火扉用差圧緩和構造を提供する。【解決手段】防火扉５０の厚み方向を貫通して形成される通気口４と、防火扉５０の遮蔽面５１ａ上にスライド可能に保持され、所望時に通気口４を塞ぐ閉鎖板５と、遮蔽面５１ａ上に設けられ、常温下で閉鎖板５を遮蔽面５１ａ上の所望の位置に位置決めしてそのスライドを規制するとともに、常温を超える所望に定めた温度で閉鎖板５の位置決めを解除する規制解除部材７と、を備えてなる防火扉用差圧緩和構造１Ａによる。【選択図】図１
DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR, FIRE DOOR WITH DIFFERENTIAL PRESSURE RELIEF STRUCTURE, AND RETROFIT UNIT FOR DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR
To provide a differential pressure relieving structure for a fire door capable of relaxing the pressure difference between the inside and outside of a fire door and automatically closing a vent formed in the fire door in the event of a fire.SOLUTION: A differential pressure relaxation structure 1A for a fire door is provided with: a vent hole 4 formed through a thickness direction of a fire door 50; a closing plate 5 slidably held on a shielding surface 51a of the fire door 50 and closing the vent 4 when desired; and a deregulating member 7 that is provided on the shielding surface 51a, and positions the closing plate 5 at a desired position on the shielding surface 51a at room temperature to regulate its sliding, and releases the positioning of the closing plate 5 at a defined temperature desired exceeding room temperature.SELECTED DRAWING: Figure 1
【課題】防火扉の内外の圧力差を緩和することができ、かつ火災時に防火扉に形成される通気口を自動で閉鎖することができる防火扉用差圧緩和構造を提供する。【解決手段】防火扉５０の厚み方向を貫通して形成される通気口４と、防火扉５０の遮蔽面５１ａ上にスライド可能に保持され、所望時に通気口４を塞ぐ閉鎖板５と、遮蔽面５１ａ上に設けられ、常温下で閉鎖板５を遮蔽面５１ａ上の所望の位置に位置決めしてそのスライドを規制するとともに、常温を超える所望に定めた温度で閉鎖板５の位置決めを解除する規制解除部材７と、を備えてなる防火扉用差圧緩和構造１Ａによる。【選択図】図１
DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR, FIRE DOOR WITH DIFFERENTIAL PRESSURE RELIEF STRUCTURE, AND RETROFIT UNIT FOR DIFFERENTIAL PRESSURE RELIEF STRUCTURE FOR FIRE DOOR
防火扉用差圧緩和構造および差圧緩和構造付き防火扉および防火扉用差圧緩和構造後付けユニット
ISHIDA MASAKI (author) / HIRAI TAKANORI (author)
2022-08-09
Patent
Electronic Resource
Japanese
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
Fire door with differential pressure adjustment function
| European Patent Office | 2018